target = c("u", "d")
apply(expand.grid(rep(list(target), 6)), 1, paste, sep="", collapse="")
b
On Mar 1, 2008, at 9:13 AM, Megh Dal wrote:
Hi all,
Suppose I have to letters 'u' and 'd'. Now I want to find all
combinations like that :
uuuuuu
uuuuud
uuuudu
.........
........
dddddd
This type of combination generally required for Option Pricing in
financial/derivative market. Here generally 'u' means: up-move and 'd'
means down move of price like Stock price etc.
Is there any easy way in R for doing that?
Regards,